The incredibly prolific executive producer, who shares creator credit on FX anthology American Horror Story and Fox's Scream Queens, will continue to work on both series (he serves as showrunner on Scream Queens) as well as future iterations of recent FX launch American Crime Story. The deal also finds Falchuk focusing on developing new projects for broadcast and cable.

"Brad has been an excellent partner to our studio," said Fox Television Group chairman and CEO Dana Walden. “He is a hugely talented writer and director who has been integral to the creation of two of the most iconic and successful shows in recent television history. We love working with him and are very happy that he will continue to call Twentieth Century Fox Television his professional home."

Falchuk's recent contributions do not stop at the previously mentioned series. He also co-created Glee and served as executive producer of Nip/Tuck, where he began his career as a staff writer and first started his longtime collaboration with Ryan Murphy. Falchuk also is a frequent director, helming multiple episodes of Glee during its six-season run and much of the first season of Scream Queens.

Though studios seem to be increasingly shy about signing writer-producers to overall deals, those behind powerhouse series remain an exception. In 2015, Empire producers Lee Daniels and Ilene Chaiken were locked into similar pacts by 20th Century Fox Television after the drama's out-of-the-gate success.

The People v. O.J. Simpson: American Crime Story is the latest success for Falchuk. The true-crime miniseries opened to FX records, raking in a series premiere best 8.3 million viewers — 4.2 million of them adults 18-49.